/*
 * Copyright Red Hat Inc. and/or its affiliates and other contributors
 * as indicated by the authors tag. All rights reserved.
 *
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU General Public License version 2.
 * 
 * This particular file is subject to the "Classpath" exception as provided in the 
 * LICENSE file that accompanied this code.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT A
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License,
 * along with this distribution; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301, USA.
 */
@noanno
abstract class OfOp() of OfOpA | OfOpB
    satisfies Summable<OfOp> {
    
    void m() {
        Summable<OfOp> comp = nothing;
        OfOp foo = comp of OfOp;
        Anything v = nothing;
        Object? x = v of Object|Null;
        OfOp o = nothing;
        OfOpA|OfOpB z = o of OfOpA|OfOpB;
    }
}
@noanno
abstract class OfOpA() extends OfOp() {}
@noanno
abstract class OfOpB() extends OfOp() {}